Xylem IM255 AQUAVAR Intelligent Pump Controller - Manual (Page 135)

Maximum altitude above sea level without derating 1000 m
EMC standards, Emission EN 61800–3, EN 61000–6–3/4, EN 55011
EMC standards, immunity EN 61800–3, EN 61000–6–1/2, EN 61000–4–2, EN
61000–4–3, EN 61000–4–4, EN 61000–4–5, EN 61000–
4–6
Derating for high altitude, see the Technical Bulletin for detailed information.
1) Only for ≤ 3.7 kW (200240 V), ≤ 7.5 kW (400480 V)
2) As enclosure kit for ≤ 3.7 kW (200240 V), ≤ 7.5 kW (400480 V)
3) Derating for high ambient temperature, see the Technical Bulletin for detailed
information.
Control card performance
Scan interval 1 ms
Control card, USB serial communication
USB standard 1.1 (full speed)
USB plug USB type B “device” plug
Connection to PC is carried out via a standard host/device USB cable.
The USB connection is galvanically isolated from the supply voltage (PELV) and other
high-voltage terminals.
The USB ground connection is not galvanically isolated from protection earth. Use only an
isolated laptop as PC connection to the USB connector on the frequency converter.
Protection and features
• Electronic thermal motor protection against overload.
• Temperature monitoring of the heatsink ensures that the frequency converter trips if
the temperature reaches a predefined level. An overload temperature cannot be reset
until the temperature of the heatsink is below the values stated in the tables on the
following pages (Guideline — these temperatures may vary for different power sizes,
frame sizes, enclosure ratings, etc.)
• The frequency converter is protected against short-circuits on motor terminals U, V,
W.
• If mains phase is missing, the frequency converter trips a warning (depending on the
load).
• Monitoring of the intermediate circuit voltage ensures that the frequency converter
trips if the intermediate circuit voltage is too low or too high.
• The frequency converter constantly checks for critical levels of internal temperature,
load current, high voltage on the intermediate circuit and low motor speeds. As a
response to a critical level, the frequency converter can adjust the switching frequency
and/or change the switching pattern in order to ensure the performance of the
frequency converter.
Fuse specifications
Branch circuit protection fuses
For compliance with IEC/EN 61800-5-1 electrical standards the following fuses are
recommended.
Technical Specification
Aquavar ® Intelligent Pump Controller INSTRUCTION MANUAL 133